<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>语法规范</title>
    <style>
        h1 {
            color: red;
            font-size: 80px;
        }
    </style>
</head>
<body>
    
</body>
</html>